PQ vs QS.on
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
PQ
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The PQ-Box App β Experience power quality in a whole new way. Connect wirelessly to your PQ-Box and keep an eye on your measurement data at all times. Live visualization, smart analysis features, and full controlβall combined in one intuitive app. This makes power quality analysis mobile, flexible, and simply fascinatingly efficient.
QS.on
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Welcome to QS.on, the app for carrying out structured and efficient quality inspections. Perform your site inspections with state-of-the-art software. Signature-based log recording Documentation of weak points using the built-in camera Work at any location, even without a network connection Automated mail dispatch of results Construction site scheduling from previous systems All inspections always in view Standard interfaces from upstream and downstream systems Portal-supported management system Simplest operability Cost-efficient recording of inspections A programm from practice for practitioners.
Screenshots
Verdict
The clearest difference is update cadence: QS.on at every 5 weeks against PQ's every 16 months. QS.on also leads on iOS requirement (15.0 vs 17). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PQ ships an update every 16 months, QS.on every 5 weeks. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.
| Parameter | PQ | QS.on |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 16 months | Every 5 weeks β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod β better |
| Requires iOS | 17 | 15.0 β better |
| Further details β not scored | ||
| Size | 40 MB | 205 MB |
| Age rating | 4+ | 4+ |
| Developer | A. Eberle GmbH & Co. KG | LEW Verteilnetz GmbH |
In-app purchases
PQ
No in-app purchases
QS.on
No in-app purchases








